tests/src/ctdb_transaction.c

   1 /*
   2    simple tool to test persistent databases
   3
   4    Copyright (C) Andrew Tridgell  2006-2007
   5    Copyright (c) Ronnie sahlberg  2007
   6    Copyright (C) Michael Adam     2009
   7
   8    This program is free software; you can redistribute it and/or modify
   9    it under the terms of the GNU General Public License as published by
  10    the Free Software Foundation; either version 3 of the License, or
  11    (at your option) any later version.
  12
  13    This program is distributed in the hope that it will be useful,
  14    but WITHOUT ANY WARRANTY; without even the implied warranty of
  15    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  16    GNU General Public License for more details.
  17
  18    You should have received a copy of the GNU General Public License
  19    along with this program; if not, see <http://www.gnu.org/licenses/>.
  20 */
  21
  22 #include "includes.h"
  23 #include "lib/events/events.h"
  24 #include "system/filesys.h"
  25 #include "popt.h"
  26 #include "cmdline.h"
  27
  28 #include <sys/time.h>
  29 #include <time.h>
  30
  31 static struct timeval tp1,tp2;
  32
  33 static void start_timer(void)
  34 {
  35         gettimeofday(&tp1,NULL);
  36 }
  37
  38 static double end_timer(void)
  39 {
  40         gettimeofday(&tp2,NULL);
  41         return (tp2.tv_sec + (tp2.tv_usec*1.0e-6)) -
  42                 (tp1.tv_sec + (tp1.tv_usec*1.0e-6));
  43 }
  44
  45 static int timelimit = 10;
  46 static int delay = 0;
  47 static int verbose = 0;
  48 static int no_trans = 0;
  49
  50 static unsigned int pnn;
  51
  52 static TDB_DATA old_data;
  53
  54 static int success = true;
  55
  56 static void print_counters(void)
  57 {
  58         int i;
  59         uint32_t *old_counters;
  60
  61         printf("[%4u] Counters: ", getpid());
  62         old_counters = (uint32_t *)old_data.dptr;
  63         for (i=0;i<old_data.dsize/sizeof(uint32_t); i++) {
  64                 printf("%6u ", old_counters[i]);
  65         }
  66         printf("\n");
  67 }
  68
  69 static void each_second(struct event_context *ev, struct timed_event *te,
  70                                          struct timeval t, void *private_data)
  71 {
  72         struct ctdb_context *ctdb = talloc_get_type(private_data, struct ctdb_context);
  73
  74         print_counters();
  75
  76         event_add_timed(ev, ctdb, timeval_current_ofs(1, 0), each_second, ctdb);
  77 }
  78
  79 static void check_counters(struct ctdb_context *ctdb, TDB_DATA data)
  80 {
  81         int i;
  82         uint32_t *counters, *old_counters;
  83
  84         counters     = (uint32_t *)data.dptr;
  85         old_counters = (uint32_t *)old_data.dptr;
  86
  87         /* check that all the counters are monotonic increasing */
  88         for (i=0; i<old_data.dsize/sizeof(uint32_t); i++) {
  89                 if (counters[i]<old_counters[i]) {
  90                         printf("[%4u] ERROR: counters has decreased for node %u  From %u to %u\n",
  91                                getpid(), i, old_counters[i], counters[i]);
  92                         success = false;
  93                 }
  94         }
  95
  96         if (old_data.dsize != data.dsize) {
  97                 old_data.dsize = data.dsize;
  98                 old_data.dptr = talloc_realloc_size(ctdb, old_data.dptr, old_data.dsize);
  99         }
 100
 101         memcpy(old_data.dptr, data.dptr, data.dsize);
 102         if (verbose) print_counters();
 103 }
 104
 105
 106 static void do_sleep(unsigned int sec)
 107 {
 108         unsigned int i;
 109         for (i=0; i<sec; i++) {
 110                 if (verbose) printf(".");
 111                 sleep(1);
 112         }
 113         if (verbose) printf("\n");
 114 }
 115
 116 static void test_store_records(struct ctdb_context *ctdb, struct event_context *ev)
 117 {
 118         TDB_DATA key;
 119         struct ctdb_db_context *ctdb_db;
 120         int ret;
 121         uint32_t *counters;
 122         ctdb_db = ctdb_db_handle(ctdb, "transaction.tdb");
 123
 124         key.dptr = discard_const("testkey");
 125         key.dsize = strlen((const char *)key.dptr)+1;
 126
 127         start_timer();
 128         while ((timelimit == 0) || (end_timer() < timelimit)) {
 129                 TALLOC_CTX *tmp_ctx = talloc_new(ctdb);
 130                 TDB_DATA data;
 131                 struct ctdb_transaction_handle *h;
 132                 struct ctdb_record_handle *rec;
 133
 134
 135                 if (!no_trans) {
 136                         if (verbose) DEBUG(DEBUG_ERR, ("starting transaction\n"));
 137                         h = ctdb_transaction_start(ctdb_db, tmp_ctx);
 138                         if (h == NULL) {
 139                                 DEBUG(DEBUG_ERR, ("Failed to start transaction on node %d\n",
 140                                        ctdb_get_pnn(ctdb)));
 141                                 talloc_free(tmp_ctx);
 142                                 return;
 143                         }
 144                         if (verbose) DEBUG(DEBUG_ERR, ("transaction started\n"));
 145                         do_sleep(delay);
 146
 147                         if (verbose) DEBUG(DEBUG_ERR, ("calling transaction_fetch\n"));
 148                         ret = ctdb_transaction_fetch(h, tmp_ctx, key, &data);
 149                         if (ret != 0) {
 150                                 DEBUG(DEBUG_ERR,("Failed to fetch record\n"));
 151                                 exit(1);
 152                         }
 153                         if (verbose) DEBUG(DEBUG_ERR, ("fetched data ok\n"));
 154                 } else {
 155                         if (verbose) DEBUG(DEBUG_ERR, ("calling fetch_lock\n"));
 156                         rec = ctdb_fetch_lock(ctdb_db, tmp_ctx, key, &data);
 157                         if (rec == NULL) {
 158                                 DEBUG(DEBUG_ERR,("Failed to fetch record\n"));
 159                                 exit(1);
 160                         }
 161                         if (verbose) DEBUG(DEBUG_ERR, ("fetched record ok\n"));
 162                 }
 163                 do_sleep(delay);
 164
 165                 if (data.dsize < sizeof(uint32_t) * (pnn+1)) {
 166                         unsigned char *ptr = data.dptr;
 167
 168                         data.dptr = talloc_zero_size(tmp_ctx, sizeof(uint32_t) * (pnn+1));
 169                         memcpy(data.dptr, ptr, data.dsize);
 170                         talloc_free(ptr);
 171
 172                         data.dsize = sizeof(uint32_t) * (pnn+1);
 173                 }
 174
 175                 if (data.dptr == NULL) {
 176                         DEBUG(DEBUG_ERR, ("Failed to realloc array\n"));
 177                         talloc_free(tmp_ctx);
 178                         return;
 179                 }
 180
 181                 counters = (uint32_t *)data.dptr;
 182
 183                 /* bump our counter */
 184                 counters[pnn]++;
 185
 186                 if (!no_trans) {
 187                         if (verbose) DEBUG(DEBUG_ERR, ("calling transaction_store\n"));
 188                         ret = ctdb_transaction_store(h, key, data);
 189                         if (ret != 0) {
 190                                 DEBUG(DEBUG_ERR,("Failed to store record\n"));
 191                                 exit(1);
 192                         }
 193                         if (verbose) DEBUG(DEBUG_ERR, ("stored data ok\n"));
 194                         do_sleep(delay);
 195
 196                         if (verbose) DEBUG(DEBUG_ERR, ("calling transaction_commit\n"));
 197                         ret = ctdb_transaction_commit(h);
 198                         if (ret != 0) {
 199                                 DEBUG(DEBUG_ERR,("Failed to commit transaction\n"));
 200                                 check_counters(ctdb, data);
 201                                 exit(1);
 202                         }
 203                         if (verbose) DEBUG(DEBUG_ERR, ("transaction committed\n"));
 204                 } else {
 205                         if (verbose) DEBUG(DEBUG_ERR, ("calling record_store\n"));
 206                         ret = ctdb_record_store(rec, data);
 207                         if (ret != 0) {
 208                                 DEBUG(DEBUG_ERR,("Failed to store record\n"));
 209                                 exit(1);
 210                         }
 211                         if (verbose) DEBUG(DEBUG_ERR, ("stored record ok\n"));
 212                 }
 213
 214                 /* store the counters and verify that they are sane */
 215                 if (verbose || (pnn == 0)) {
 216                         check_counters(ctdb, data);
 217                 }
 218
 219                 do_sleep(delay);
 220
 221                 talloc_free(tmp_ctx);
 222         }
 223
 224 }
 225
 226 /*
 227   main program
 228 */
 229 int main(int argc, const char *argv[])
 230 {
 231         struct ctdb_context *ctdb;
 232         struct ctdb_db_context *ctdb_db;
 233         int unsafe_writes = 0;
 234         struct poptOption popt_options[] = {
 235                 POPT_AUTOHELP
 236                 POPT_CTDB_CMDLINE
 237                 { "timelimit", 't', POPT_ARG_INT, &timelimit, 0, "timelimit", "integer" },
 238                 { "delay", 'D', POPT_ARG_INT, &delay, 0, "delay (in seconds) between operations", "integer" },
 239                 { "verbose", 'v', POPT_ARG_NONE,  &verbose, 0, "switch on verbose mode", NULL },
 240                 { "no-trans", 'n', POPT_ARG_NONE, &no_trans, 0, "use fetch_lock/record store instead of transactions", NULL },
 241                 { "unsafe-writes", 'u', POPT_ARG_NONE, &unsafe_writes, 0, "do not use tdb transactions when writing", NULL },
 242                 POPT_TABLEEND
 243         };
 244         int opt;
 245         const char **extra_argv;
 246         int extra_argc = 0;
 247         poptContext pc;
 248         struct event_context *ev;
 249
 250         if (verbose) {
 251                 setbuf(stdout, (char *)NULL); /* don't buffer */
 252         } else {
 253                 setlinebuf(stdout);
 254         }
 255
 256         pc = poptGetContext(argv[0], argc, argv, popt_options, POPT_CONTEXT_KEEP_FIRST);
 257
 258         while ((opt = poptGetNextOpt(pc)) != -1) {
 259                 switch (opt) {
 260                 default:
 261                         fprintf(stderr, "Invalid option %s: %s\n",
 262                                 poptBadOption(pc, 0), poptStrerror(opt));
 263                         exit(1);
 264                 }
 265         }
 266
 267         /* setup the remaining options for the main program to use */
 268         extra_argv = poptGetArgs(pc);
 269         if (extra_argv) {
 270                 extra_argv++;
 271                 while (extra_argv[extra_argc]) extra_argc++;
 272         }
 273
 274         ev = event_context_init(NULL);
 275
 276         ctdb = ctdb_cmdline_client(ev);
 277         if (ctdb == NULL) {
 278                 DEBUG(DEBUG_ERR, ("Could not attach to daemon\n"));
 279                 return 1;
 280         }
 281
 282         /* attach to a specific database */
 283         if (unsafe_writes == 1) {
 284                 ctdb_db = ctdb_attach(ctdb, "transaction.tdb", true, TDB_NOSYNC);
 285         } else {
 286                 ctdb_db = ctdb_attach(ctdb, "transaction.tdb", true, 0);
 287         }
 288
 289         if (!ctdb_db) {
 290                 DEBUG(DEBUG_ERR, ("ctdb_attach failed - %s\n", ctdb_errstr(ctdb)));
 291                 exit(1);
 292         }
 293
 294         DEBUG(DEBUG_ERR, ("Waiting for cluster\n"));
 295         while (1) {
 296                 uint32_t recmode=1;
 297                 ctdb_ctrl_getrecmode(ctdb, ctdb, timeval_zero(), CTDB_CURRENT_NODE, &recmode);
 298                 if (recmode == 0) break;
 299                 event_loop_once(ev);
 300         }
 301
 302         pnn = ctdb_get_pnn(ctdb);
 303         printf("Starting test on node %u. running for %u seconds. sleep delay: %u seconds.\n", pnn, timelimit, delay);
 304
 305         if (!verbose && (pnn == 0)) {
 306                 event_add_timed(ev, ctdb, timeval_current_ofs(1, 0), each_second, ctdb);
 307         }
 308
 309         test_store_records(ctdb, ev);
 310
 311         if (verbose || (pnn == 0)) {
 312                 if (success != true) {
 313                         printf("The test FAILED\n");
 314                         return 1;
 315                 } else {
 316                         printf("SUCCESS!\n");
 317                 }
 318         }
 319         return 0;
 320 }